Control

Attack submarine control room

Rigged for ultra-quiet at 400 feet: a sonar waterfall and passive bearing display tracking three contacts, the periscope, depth and trim, the ballast “Christmas tree” board, four torpedo tubes, reactor and propulsion, and the deck log. Give depth orders, shut the hull openings for a straight board, flood a tube and open its outer door: radios and checkboxes only. Try it in Silo, Weyland-Yutani, Pip-Boy and MS-DOS.

Contact Sierra-1 · hostile
Sonar · broadband waterfallTowed array · 30 min
ContactBrgClassRangeStatus
Sierra-1042°Submarine, 5-blade8 400 ydHostile
Sierra-2191°Merchant, 2 shafts14 000 ydUnknown
Sierra-3281°Frigate (friendly)22 000 ydFriend
Passive bearingsShip's head 090°
Sierra-1
042° · drift 0.4°/min R
Solution
Crs 250 · 12 kn · 8 400 yd
PeriscopeType 18 · low power
Ship controlDiving officer
400
Angle · list
400 feet
400ft ×100
Speed
6 kn
Course
090°
Planes
fwd 2° rise · aft 1° dive
Depth order

“Surface, surface, surface!”“Make your depth six-two feet.”“Make your depth one-five-zero feet.”“Make your depth four hundred feet.”“Make your depth eight hundred feet. Test depth.”

Ballast control · hull openings
— Straight board ○ Red board: hull opening open
Weapons · tubes 1–4
Tube 1
  • Not ready
  • Ready
Tube 2
  • Not ready
  • Ready
Tube 3
  • Not ready
  • Ready
Tube 4
  • Empty
  • Ready
Solution
Sierra-1 · run 6 200 yd · 4 min 10 s
Tube 2 fired · weapon running
Reactor and propulsion
Critical · stable
Reactor power 28%
28% power
Tave 562 °F
562Tave °F
Pressurizer
2 210 psi
Turbine gens
1 and 2 on line
Shaft
62 rpm · ⅓ ahead
Battery
94%
  • Scram
  • Rx coolant
  • Main coolant pumps slow
  • Steam leak
Deck logOfficer of the deck
0412OOD: “Dive, dive.” Diving officer: “Make your depth one-five-zero feet.”
0413Chief of the watch: “Straight board, sir. Pressure in the boat.”
0420Rig for ultra-quiet. Secure all non-essential machinery.
0431Sonar: “New contact, bearing zero-four-two, designate Sierra-1.”
0436Sonar: “Sierra-1 classified submarine, five-blade screw. Possible hostile.”
0438Captain: “Make your depth four hundred feet. All ahead one-third.”
0441Weapons: “Tube two flooded and equalised.”
0444Captain: “Man battle stations torpedo. Open outer door, tube two.”